Zonies, Jacob
Current rating: 1430
Record: 8-15
| Grand Prix Dallas-Fort Worth 2019 (modern) | starting rating: 1386 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 122 | Nix, Brandon (1518) | Won 2-0 | +201406 |
| 3modern | 97 | Laughlin, Pierson (1954) | Lost 1-2 | -91397 |
| 4modern | 299 | Stewart, Phillip (1667) | Lost 1-2 | -131384 |
| 5modern | 291 | Campion, Andres (1705) | Won 2-0 | +241408 |
| 6modern | 209 | Loftesness, Eric (1367) | Lost 1-2 | -191389 |
| 7modern | 325 | Moody, Luke (1539) | Won 2-0 | +211410 |
| 8modern | 187 | Spears, Robert (1522) | Won 2-1 | +201430 |
| top | average opponent: 1610record: 4-3 | new rating: 1430 | ||
| Grand Prix Las Vegas 2018 (modern) (modern) | starting rating: 1411 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 363 | Agnes, Rachel (1454) | Won 2-1 | +191430 |
| 2modern | 246 | Dahle, Travis (1592) | Lost 0-2 | -151415 |
| 3modern | 678 | Yam, Philip (1768) | Lost 0-2 | -121403 |
| 4modern | 796 | Laughton, Don (1437) | Lost 0-2 | -171386 |
| top | average opponent: 1562record: 1-3 | new rating: 1386 | ||
| Grand Prix Phoenix 2018 (modern) | starting rating: 1394 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 298 | Pang, Ray (1545) | Lost 0-2 | -151379 |
| 2modern | 383 | Gallegos, Rodrigo (1482) | Won 2-1 | +201399 |
| 3modern | 533 | Winkelpleck, Chad (1600) | Won 2-1 | +211420 |
| 4modern | 338 | Frank, Andrew (1601) | Lost 1-2 | -141406 |
| 5modern | 367 | Jurgensen, Alex (1500) | Won 2-0 | +191425 |
| 6modern | 359 | Rosenthal, Eli (1641) | Lost 0-2 | -141411 |
| top | average opponent: 1562record: 3-3 | new rating: 1411 | ||
| Grand Prix Las Vegas 2017 (modern) (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 513 | Erickson, James (1452) | Lost 0-2 | -191481 |
| 2modern | 900 | Carstensen, Chris (1615) | Lost 0-2 | -151466 |
| 3modern | 1425 | Eikenes, Lasse (1618) | Lost 0-2 | -161450 |
| 4modern | 1459 | Wan, Brian (1445) | Lost 0-2 | -181432 |
| 5modern | 1372 | Carbary, Justin (1424) | Lost 0-2 | -181414 |
| 6modern | 1267 | Rizzo, Anthony (1313) | Lost 0-2 | -201394 |
| top | average opponent: 1478record: 0-6 | new rating: 1394 | ||